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An exploratory study of a zirconium-modified, precipitation-strengthened nickel-30 copper alloyA precipitation-strengthened alloy has been produced through minor additions of zirconium to a base Ni-30Cu alloy. The results of this exploratory study indicate that thermomechanical processing of a solution-treated Ni-30Cu-0.2Zr alloy produced a dispersion of precipitates. The precipitates have been tentatively identified as a Ni5Zr compound. Comparison of the mechanical properties, as determined by testing in air, of the Zr-modified alloy to those of a Ni-30Cu alloy reveals that the precipitation-strengthened alloy has improved tensile properties to 1200 K and improved stress-rupture properties to 1100 K. The oxidation characteristics of the modified alloy appeared to be equivalent to those of the base Ni-30Cu alloy.
Document ID
19750029140
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Whittenberger, J. D.
(NASA Lewis Research Center Cleveland, Ohio, United States)
Date Acquired
August 8, 2013
Publication Date
November 1, 1974
Publication Information
Publication: Metallurgical Transactions
Volume: 5
Subject Category
Metallic Materials
Accession Number
75A13212
Distribution Limits
Public
Copyright
Other

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